title: Use of progesterone to reduce preterm birth.
mesh_terms: D019326:17-alpha-Hydroxyprogesterone / Q000627:therapeutic use*; D005260:Female; D005865:Gestational Age; D006801:Humans; D007752:Obstetric Labor, Premature / Q000517:prevention & control*; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D016032:Randomized Controlled Trials as Topic; D015149:Tocolytic Agents / Q000627:therapeutic use*; D016896:Treatment Outcome
chemical_list: D015149:Tocolytic Agents; D019326:17-alpha-Hydroxyprogesterone